Improved glass-fuenaoe



NILES GRANGER, or sAnAToeA, NEW YORK.

Leners Patent No. sopas-dated August 4, 186e.

IMPROVED GLASS-PURNAGE.

@te .tlgctule referat tu in these tttters fzrteutmn netting putt nt tige tame.y

TO ALL WHOM IT MAY CONCERN:

Be it known that I, NILES GRNGER, of'Saratoga, in the county of Saratoga, and State of NewYork, have invented anew and useful Improvement in GlassFurnaces; andI do hereby declare that the following is a full, clear, and exact description thereof, which will enable those skilled in the art'tomake and. use the same, reference being had to the accompanying drawings, formingpart of this specioation.

This invention'relates to a new and useful improvement in the manufacture of glass, whereby much valuable time and labor are saved.l

And the in'vention consists in providing apeculiarly-constructed meltinglpot, whereby I am enabled to melt and blow glass without intermission, and by which improved melting-pot Iy pursue a perpetual glass-melting and blowing-process, the construction of which pot and operation I will proceed to describe.

Figure 1 represents the melting-'pot in a properly-constructed furnace as when ready for use, the same being a sectional elevation through the line x x of fig. 2.

Figure 2 is a` horizontal section through the line y y of fig. 1.

Similar letters of reference indicate corresponding parts.

A. represents the furnace o1" wall which surrounds the melting-pot.

This furnace may be of any convenient size and form,'an d made of any suitable material.`

B represents the melting-pot, formed substantially as seen in the drawing, with two compartments, C and D, with a. connection between them, as seen at E. I i

F represents the fire-box.

The melting-pot is supported in any suitable manner in the furnace.

The method of operation is as follows: i

In the first place, the pot is filled with broken glass and melted.

This glazes over the pot and protects it from the effects of the flux which is combined with the material to be afterwards used. i

l Then thelarger portion of the pot'C is filled withvthe material for making glass, and as this melts in the largerportiomU, the melted' glass sinks down to the bottom and-rises up in the small portion of the pot, D, from whence it is worked or blown. Y

The melted glass which thus risesin the part D is pure glass, or free from the foreign mattei' o'r impurities which have hitherto been so greatan impediment in goed glass-making, as those impurities remain in and ioat in the large portion C.

By this method the danger of breaking the working-pot by a large body of meltedglass is avoided.

The material may be fed o n to the Vportion C, for melting, constantly, or as fast as necessary, while the pure melted glass is being worked or blown from the 'smaller part D.

In this manner the operation of mel-ting and' blowing simultaneously maybe kept up, without intermission, for any -desired length of time. d

The main fire or'heat is applied to the larger part, C, but the products of combustion are passed beneath the part D, through properly-constructed ues, when the heat isso controlled as to keep the smaller part, with its contents, at the proper temperature.A

Having thus described my invention, I claim as new, and Vdesire to secure by Letters Patent- The'pot B, formed of the parts C and D, connected by thepassage-way E, and operating substantially as and for the purposes described. v i

' NILES GRANGER.

Witnesses:

THOMAS PRESTON, CHARLES GnANeEn: 

